Blueberry Strain is a very strong medical marijuana plant. Blueberry indica dominant hybrid may be helpful in a range of conditions, including pain, whether chronic or short-term relief. Because of blueberry strain relaxing properties, Blueberry may be a perfect choice for those dealing with stress, anxiety or even PTSD, as it provides both physical and mental relaxation. Moreover, the hybrid may also help with some appetite issues. With THC content as high as 21%.